For blog, what are best practices to implement topic’s hierarchical comments?
How to help users to find yet unread comments when they may appear anywhere in the tree?
How to show what parent comment ...

Is there a way to do infinite nested comment threads in a way that doesn't look horrible? I realize that one could simply restrict the levels of nesting, but perhaps there's a better way of indicating ...

Chat programs usually put the most recent information or message below others (bottom posting). Forums and feeds put the most recent information above others (top posting). Is any one better than the ...

According to the latest flat style I feel that attached image shouldn't have a separator to separate comments.
Let me know if it's a good idea to separate comments or what are the latest trends and ...